Ralph Macchio on How I Met Your Mother

May Sweeps Guest Stars: Who's Worth Watching?

•April 26, 2013

May sweeps is upon us, which means plenty of big-name guest stars invading your favorite TV shows. You can’t possibly watch them all (we know; we’ve tried), so here’s a quick and easy guide to which guest stars you need to tune in for… and which you can skip. — Dave Nemetz, Yahoo! TV